#include <stdlib.h>
#include <gtk/gtk.h>
static void destroy(GtkWidget*,GdkEvent*,gpointer);
void change(GtkWidget*, GdkEvent*, gpointer);
gchar textinwindow[50] = "Press A Button";
int main (int argc, char *argv[])
{
GtkWidget *window;
GtkWidget *label;
gtk_init(&argc, &argv);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_title(GTK_WINDOW (window), "Hello World");
gtk_container_set_border_width(GTK_CONTAINER (window), 10);
gtk_widget_set_size_request(window, 200, 100);
label = gtk_label_new(textinwindow);
gtk_container_add(GTK_CONTAINER(window), label);
gtk_widget_show_all(window);
g_signal_connect(G_OBJECT(window), "destroy", G_CALLBACK(destroy), NULL);
g_signal_connect(G_OBJECT(window), "key-press-event", G_CALLBACK(change), label);
gtk_main();
return 0;
}
static void destroy(GtkWidget *window,GdkEvent *event, gpointer data)
{
gtk_main_quit();
}
void change(GtkWidget *widget, GdkEvent *event, gpointer why)
{
sprintf(textinwindow, "You pressed a button!");
gtk_label_set_text(why, textinwindow);
}